The outgoing iron-block 3.7-liter V-6 produced between 210 and 215 hp and 235 lb-ft of torque under the hood of the Liberty and Ram 1500, and was previously found in everything from the Jeep Commander to the Dodge Dakota. The new 3.6-liter Pentastar V-6 is more efficient, while producing about 280 hp and 260 lb-ft of torque in its least potent form.